A New Development in Flow Measurement: The Dall Flow Tube

by Andre L. Jorissen, (M.ASCE), Head Dept. of Hydr. and Hydr. Eng.; Cornell Univ., Ithaca, N. Y.,

Serial Information: Journal of the Hydraulics Division, 1956, Vol. 82, Issue 4, Pg. 1-12

Document Type: Journal Paper


Tube offers two-fold advantage of great compactness and low head loss; it is only slightly more sensitive to conditions of installation than standard Venturi tubes; for Dall tubes with throat to inlet diameter ratios not more than 0.75 (usual limit for Venturi tubes), coefficient of discharge can be predicted within 1%.

Subject Headings: Flow measurement | Fluid flow | Pipe flow | Head loss (fluid mechanics) | Inlets (waterway) | Water discharge

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